美国国家标准技术研究所（National Institute of Standards and Technology，简写为NIST） is a registered trademark of National Institute of Standards and Technology。NIST的前身为国家标准局（NBS，1901年~1988年），是一家测量标准实验室，属于美国商务部的非监管机构。
This Standard Reference Material (SRM) is intended primarily for validation of methods for determining proximates, fatty acids, cholesterol, vitamins, elements, amino acids, and nucleotides in infant and adult nutritional formulas and similar materials. This SRM can also be used for quality assurance when assigning values to in-house reference materials. The SRM is a milk-based, hybrid infant/adult nutritional powder prepared by a manufacturer of infant formula and adult nutritional products. A unit of SRM 1849a consists of 10 packets, each containing approximately 10 g of material.

Infant/Adult Nutritional Formula （1849a） 产品详细：

ach packet contains approximately 10 grams of a milk-based powder, a blend of material similar to the infant and adult versions of just-add-water nutritional powders you can buy in the grocery store. The material, provided by a manufacturer, is close to the consumer versions, but is "not an actual infant formula, because you don't want it to be confused with anything real," says Melissa Phillips, one of the NIST scientists who coordinated the analysis of this reference material. It's not so important that the material matches an actual consumer product, just that it's been assessed with NIST's usual rigor and is available for others to do the same.

Other Notes

Certified for the analytes listed below. See certificate for values and more details

ach packet contains approximately 10 grams of a milk-based powder, a blend of material similar to the infant and adult versions of just-add-water nutritional powders you can buy in the grocery store. The material, provided by a manufacturer, is close to the consumer versions, but is "not an actual infant formula, because you don't want it to be confused with anything real," says Melissa Phillips, one of the NIST scientists who coordinated the analysis of this reference material. It's not so important that the material matches an actual consumer product, just that it's been assessed with NIST's usual rigor and is available for others to do the same.

Other Notes

Certified for the analytes listed below. See certificate for values and more details

婴儿/成人奶粉-微量元素和营养物质，组分Infant/Adult Nutritional Formula （NIST-1849a） ：
产品详细 ：Each packet contains approximately 10 grams of a milk-based powder, a blend of material similar to the infant and adult versions of just-add-water nutritional powders you can buy in the grocery store. The material, provided by a manufacturer, is close to the consumer versions, but is "not an actual infant formula, because you don't want it to be confused with anything real," says Melissa Phillips, one of the NIST scientists who coordinated the analysis of this reference material. It's not so important that the material matches an actual consumer product, just that it's been assessed with NIST's usual rigor and is available for others to do the same.